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EDP SGC Series User Manual

Switchgear control system
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USER MANUAL
SGC
SGC
SGC
SWITCHGEAR CONTROL SYSTEM
SWITCHGEAR CONTROL SYSTEM
USER MANUAL
00110E4

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Summary of Contents for EDP SGC Series

  • Page 1 USER MANUAL SWITCHGEAR CONTROL SYSTEM SWITCHGEAR CONTROL SYSTEM USER MANUAL 00110E4...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS 1 Introduction..............................1 1.1 Description............................2 1.2 Functions............................. 3 1.2.1 Control functions.......................... 3 1.2.1.1 Event/Fault log........................3 1.2.1.2 Circuit breaker supervision....................3 1.2.1.3 Time synchronization......................3 1.2.1.4 Switchgear control....................... 3 1.2.2 Measurement functions....................... 4 1.2.2.1 Capacitive transducer connection..................4 1.2.3 Protection functions........................
  • Page 3 TABLE OF CONTENTS 2.3 Assignable logic signals........................18 5.3 Other settings............................19 3.1 Led settings............................ 19 3.2 ID information..........................19 6 Functions..............................20 6.1 Fault pass detection..........................20 1.1 Description............................20 1.2 Signals............................20 1.3 Settings............................21 1.3.1 General........................... 21 1.3.2 Phase detector........................
  • Page 4 TABLE OF CONTENTS 6.4.1 Description..........................42 6.4.2 Signals............................ 42 6.4.3 Settings........................... 42 7 Accessories and related equipment......................43 Capacitive voltage meter HVR3A......................43 Multifunction protective relay RS9......................43 8 Technical characteristics..........................44 Versions..............................46 10 Schematics.............................. 48 11 Size................................51 12 Testings..............................
  • Page 5 TABLE OF CONTENTS Illustration 5: COM2/3 (RS485) Pinout......................11 Figure 6: COM1 connector pinout (RS232/RS422/RS485)................13 Figure 7: COM4 connector pinout (RS232/RS422/RS485)................14 Illustration 8: VPD unit logic diagram......................26 Illustration 9: Example of sectionalizer automatism working................30 Illustration 10: Operation and state diagram of sectionaliser algorithm............30 Illustration 11: Command execution order......................

  • Page 6: Introduction

    1 INTRODUCTION The SGC is an electronic controller for automatization of medium voltage switchgear providing multiple control and protection functions. There are three main models for the SGC: SGC180: Control functions. • Control of one circuit breaker with operation verification, kA2 counter, logging of external ◦...

  • Page 7: Description

    1 INTRODUCTION 1.1 DESCRIPTION The SGC is composed of these main parts: Power supply. ● Processing module. ● Analog measurement module. ● Digital I/O module. ● Communications module. ● Analog inputs Current Voltage PORTS RELAYS OPTOS POWER SUPPLY LOCAL BUS SAMPLE BUFFER Illustration 2: Block diagram.

  • Page 8: Functions

    1.2 FUNCTIONS 1.2.1 CONTROL FUNCTIONS The SGC device has a wide range of control functions to meet any customer requirements. 1.2.1.1 EVENT/FAULT LOG Every event detected by the SGC is stored in a non-volatile memory. Up to 100 events are stored, with associated information (depending on event type). The main types of events stored include: Changes on internal state.

  • Page 9: Measurement Functions

    : the voltage inputs of the SGC are parallel connected to the preinstalled voltage • indicators. This can be done in a non-intrusive way thanks to the very high input impedance of the voltage inputs. Indirect mode: substituting the preinstalled voltage indicator on the switchgear with an EDP • HVR3A voltage meter.

  • Page 10: Firmware Updates

    1.2.6 FIRMWARE UPDATES The SGC is fully field-upgradeable. New firmware/software versions can be deployed via the frontal maintenance port (please refer to 3.3.1 if you have either SGC180 or SGC185 devices or refer to 4.4.4 if you have SGC195 devices for a more detailed explanation). 1.2.7 LOCAL OPERATION Basic SGC is intended for remote operation and there are no direct controls for local operation.

  • Page 11: User Interface

    2 USER INTERFACE USER INTERFACE 2.1 ELEMENTS SGC devices with local user interface have keyboard, LCD display and local/remote switch on its frontal panel. This option is available with the ordering code referred to the section 9. INDICATOR LEDS FOR SGC180 DEVICES The SGC device has 5 LEDs in the frontal panel to show up the state of the device: VCC: Shows that the device has supply voltage.

  • Page 12: Keyboard

    Cause STAT Comments Enabling microSwitch 4 Switch every 500ms Connecting miniUSB (MGMT) Stays fixed Both connecting miniUSB and enabling Switch every 500ms microSwitch 4 Error when RTU starts Switch every 50ms Table 1: RTU LEDs state definition. Cause Comments Upgrading Switch every 500ms Upgrade done Switch every 100ms...

  • Page 13: Frontal And Side Microswitch

    2 USER INTERFACE FRONTAL AND SIDE MICROSWITCH Devices with integrated RTU have a microswitch to add an end-of-line load to the communication ports COM1 and COM4. They are placed in the right side of the corresponding connector. Furthermore it have a 4-position microswitch at the side and 1-position microswitch at the frontal panel SW.

  • Page 14: Usage

    2.2 USAGE MAIN SCREEN When the device starts the main screen is always shown. This contains data about the device • state and a contextual menu. In case that no key has been pushed in 60 seconds the device will come back to the main screen. •...

  • Page 15: Sgc180 Communications

    3 SGC180 COMMUNICATIONS 3 SGC180 COMMUNICATIONS SGC180 device have two independent communication ports, with a third optionally available for special applications. Depending on the particular model options (see chapter 9), the available ports are: COM1 COM2 COM3    ...

  • Page 16: Com2/3 Port

    3.2 COM2/3 PORT COM2/COM3 ports allow the connection to other telecontrol equipment with a PROCOME or MODBUS protocol. CONFIGURATION The settings of this port are fully configurable as described in the “Communication Settings” section on the “General configuration” chapter. PROTOCOL AND CONNECTIONS On 1TP and 2TP models, the connection with the other equipment is run over a serial RS485 link.

  • Page 17: Communications For Sgc195 Devices

    4 COMMUNICATIONS FOR SGC195 DEVICES 4 COMMUNICATIONS FOR SGC195 DEVICES The SGC195 device has the RTU unit iGRID T&D iRTU integrated. It has an Ethernet port and until two communication independent ports ready to connect to the control center and/or others devices. Furthermore it has a maintenance port miniUSB and other for USB keys.
  • Page 18 Mode RS232 Mode RS422/ RS485 Figure 6: COM1 connector pinout (RS232/RS422/RS485) (User looking to the female connector shown) To work with protocols using RS232 modem mode a connector Phoenix Contact MC 1,5/9-ST-3,5 will be used. Whereas the protocols using either RS422 or RS485 modes they will use a connector Phoenix Contact MC 1,5/5-ST-3,5 5 This connector is the same as used in COM4 port at chapter 4.2.2.1 00110E4...

  • Page 19: Com4 Port

    4 COMMUNICATIONS FOR SGC195 DEVICES 4.2 COM4 PORT The COM4 port is a RS485 port isolated 3kV that allows the SGC195 device to connect with other devices with serial communications. PROTOCOL AND CONNECTION COM4 can be used to communicate with other devices by means of the next protocols: PROCOME •...

  • Page 20: Ethernet Port

    4.3 ETHERNET PORT The Ethernet port is type 10/100 with a RJ45 connector that allows to SGC195 device to connect to the control center by means a IP network PROTOCOL AND CONNECTION The Ethernet port allows a remote connection with either a control center or another device communicable by means of a network IP by using any of the following protocols: IEC60870-5-104 •...

  • Page 21: Usb Type A Port

    4 COMMUNICATIONS FOR SGC195 DEVICES 4.5 USB TYPE A PORT The USB type A port allows you to download the iGrid_iRTU_driver.inf. MAINTENANCE THROUGH USB KEY Furthermore through USB type A port allows to load settings to the iRTU. For that we need a USB pendrive with the next folders in its root: ..\UPLOAD_BIN\iDevSetup.bin ..\UPLOAD_BIN\iGRTU.bin...

  • Page 22: General Configuration

    5 GENERAL CONFIGURATION 5.1 COMMUNICATION SETTINGS The following settings allow changing the communication parameters for telecontrol ports (COM2/3). SETTING DESCRIPTION RANGE STEP Protocol Communication protocol used. PROCOME MODBUS ASCII MODBUS RTU Address Address of the equipment for communication. 0-254 Communication bit-rate. 300, 1200, 2400, 4800, 9600, 19200 o 38400bps STOP Bits...

  • Page 23: Output Settings

    5 GENERAL CONFIGURATION OUTPUT SETTINGS SETTINGS DESCRIPTION VALUES Digital output Assignment to any of the logic internal signals. Module, unit and signal DO Enable The writing of the output is enabled. ON or OFF DO Negate When enabled, the logical output value is the ON or OFF complement of the signal.

  • Page 24: Other Settings

    5.3 OTHER SETTINGS LED SETTINGS When the model has available configurable leds, any “command” signal can be assigned to them with these settings. SETTING DESCRIPTION VALUE LEDs List of assigned signals to LEDs Module, unit and signal Table 10: LED settings. ID INFORMATION A brief string describing the controlled equipment.

  • Page 25: Functions

    6 FUNCTIONS 6 FUNCTIONS 6.1 FAULT PASS DETECTION DESCRIPTION The fault pass detection unit (FPD) uses the voltage/current measures from the analog inputs to detect and signal passing faults. Phase and neutral faults can be independently detected. Voltage detection is used to improve the detection of faults and service restoration.

  • Page 26: Settings

    Direction switch Switches the direction selected between output/input Table 11: FPD Signals. SETTINGS The timings of the pass fault detector are the same for phase and neutral. Each unit can be disabled independently. 1.3.1 GENERAL NAME RANGE STEP OTHER Fault verify time (Tv) 0,05-10 s 0,05 s Service restore reset (Ts)

  • Page 27: Operation

    6 FUNCTIONS OPERATION The phase and neutral fault pass detectors are independent. Each unit has a dedicated output. Additionally, there is a common output, which is a logical OR between each of the outputs. The minimal fault detection time is To < 25ms. If the fault last longer than this time, the detection algorithm is started.
  • Page 28 VOLTAGE PRESENCE VOLTAGE PRESENCE CURRENT PHASE/HOMOPOLAR CURRENT PHASE/HOMOPOLAR I> I> CIRCUIT BREAKER CIRCUIT BREAKER OPEN OPEN CLOSE CLOSE SIGNALLING SIGNALLING FAULT FAULT CLEAR CLEAR DETECTION DETECTION b) Timed reset. a) Service restored afeter Tri. I>: Fault threshold current. Ip: Line current. To: Fault detection time.

  • Page 29: Voltage Presence Detection Unit

    6 FUNCTIONS 6.2 VOLTAGE PRESENCE DETECTION UNIT DESCRIPTION The voltage presence detection unit (VPD) processes the voltage analog inputs to asses the presence of voltage on the line. This is done by the comparison with a configurable threshold, as a percentage of the configurable nominal voltage.

  • Page 30: Settings

    SETTINGS NAME RANGE STEP OTHER Enabled ON/OFF Voltage presence threshold 0 – 100% Un 1% Un Overvoltage Threshold 100 – 250% Un 1% Un Detection time 0 – 1 s 0,05 s VP Timer (Tspt) 0-300 s Phase Open/Fail Timer (Tfff) 0-300 s Sag/Swell detection ON/OFF...
  • Page 31 6 FUNCTIONS Illustration 8: VPD unit logic diagram. 00110E4...

  • Page 32: Sectionaliser Automatism

    6.3 SECTIONALISER AUTOMATISM DESCRIPTION The sectionaliser uses the signals generated by the Pass Fault Detector (PFD) and the Voltage Presence Detector (VPD) to implement a sectionaliser algorithm. This unit is also occupied with the CB related configurations parameters, such as the motor command actuation time.

  • Page 33: Settings

    6 FUNCTIONS OUTPUTS Enabled Automatism is enabled Disabled Automatism is disabled Blocked Automatism blocked Open command Automatism has commanded CB open operation. LCB open Command for CB opening LCB close Command for CB closing COMMANDS LCB open command Remotely command the unit to issue the CB opening. LCB close command Remotely command the unit to issue the CB closing.

  • Page 34: Operation

    OPERATION Sectionaliser operational principle is based on the use of fault pass detector to monitor the main circuit breaker reclosing cycle. The voltage presence detector is used to verify whether the reclosing cycle has succeeded or not. At first, the automatism is awaiting a fault pass indication. When it occurs a timer T, corresponding to the first reclosing cycle, is started.
  • Page 35 6 FUNCTIONS CIRCUIT BREAKER CIRCUIT BREAKER CLOSED OPEN FAULT PASS FAULT PASS VOLTAGE PRESENCE VOLTAGE PRESENCE OPEN COMMAND OPEN COMMAND STATE STATE WATCH RUNNING CYCLE LAST RECLOSING WATCH WATCH RUNNING CYCLE LAST RECLOSING WATCH a) Reclosing count = 2 b) Reclosing count = 2 Failed reclosings = 1 Failed reclosings = 2 Illustration 9: Example of sectionalizer automatism working.

  • Page 36: Circuit Breaker Failure Monitoring

    6.4 CIRCUIT BREAKER FAILURE MONITORING DESCRIPTION The circuit breaker monitor detects errors in the operation of the circuit breaker by means of the following procedures: The circuit breaker does not switch position when commanded. ● The circuit breaker has open, but there is still current running through it. ●...

  • Page 37: Operation

    6 FUNCTIONS OPERATION Each time the circuit breaker is commanded (either from a remote command or an internal generated signal), the circuit breaker failure detection process is started. For openings, once the command is sent, a timer (“Maximum open time”) is started and then it waits for the switch position indicator to change to open.

  • Page 38: Circuit Breaker Supervisor

    6.5 CIRCUIT BREAKER SUPERVISOR DESCRIPTION The circuit breaker supervision function is able to detect situations of CB deterioration or operation under abnormal conditions. This is done by kA monitoring and excessive operation count alarm. This function only generates alarm events, its signals do not block any command execution. SIGNALS OUTPUTS Max breaking count...

  • Page 39: Protection Functions

    6 FUNCTIONS 6.6 PROTECTION FUNCTIONS OVERCURRENT 50/51/50N/51N 6.1.1 DESCRIPTION Functions 50/51/50N/51N are meant to protect the line against overloads and shortcircuits. The 50/50N functions are protections against shortcircuits between phases (50) or phases and neutral (50N). This is done by an instantaneous breaking command when the current is above a configurable threshold.

  • Page 40: Signals

    6.1.2 SIGNALS OUTPUTS Pickup The current is above the pickup threshold Pickup Phase The phase current is above the pickup threshold Pickup Neutral The neutral current is above the pickup threshold Trip Tripping order to the circuit breaker Trip 51 Tripping order from function 51 Trip 51N Tripping order from function 51N...

  • Page 41: Settings

    6 FUNCTIONS 6.1.3 SETTINGS NAME RANGE STEP OTHER Phase pickup threshold 0.5 – 8 A 0.25 A Phase timing type EI-VI-NI-DT-DI Phase curve number 0.1 – 10 Phase timing 0.5 – 10 s 0.1 s Phase instantaneous threshold 1 – 25 times 0.1 t Phase additional instantaneous time 0.1 –...
  • Page 42 51/51N FUNCTION Definite time: Trip order is done when the line current exceeds the threshold during more than an adjustable time. Inverse time: The inverse time characteristic is determined by the following equation: Where: I= Line current (A) Ia= Pickup current (A) t = Time (s) The K and n values for each curve family are: N.I.: Normal Inverse (K=0.14 y n= 0.02).

  • Page 43: Directional Unit 67/67N

    6 FUNCTIONS DIRECTIONAL UNIT 67/67N 6.2.1 DESCRIPTION There is a tree-phase directional unit (67) and a monophasic directional unit for neutral (67N). Directional unit operation is divided in three zones, according to the current/voltage phase. 1. Allowing zone: the tripping operation is allowed. 2.

  • Page 44: Operation

    6.2.4 OPERATION The unit's operation zones are defined by the maximum torque angle (MTA) and the configured direction (in or out). A minimum polarizing voltage can be set to disable the unit when the line voltage is too low. The “allowing/blocking” signal is routed to other protection units (overcurrent protection, FPD, …). When they have the “directional”...

  • Page 45: Measurement Function

    6 FUNCTIONS MEASUREMENT FUNCTION 6.3.1 DESCRIPTION The SGC performs a wide range of line parameter measurements which can be obtained local or remotely. Sign of RMS values indicates direction of current flow. 6.3.2 SETTINGS NAME RANGE STEP OTHER Phase Current Transformer Ratio 10-1000 / 1 Neutral Current Transformer Ratio 10-1000 / 1...

  • Page 46: Table 31: Measurement Function Signals

    OUTPUTS Current IA RMS Value RMS value with sign Current IB RMS Value RMS value with sign Current IC RMS Value RMS value with sign Current IN RMS Value RMS value with sign Voltage UA RMS Value RMS value Voltage UB RMS Value RMS value Voltage UC RMS Value RMS value...

  • Page 47: Oscillography

    6 FUNCTIONS OSCILLOGRAPHY 6.4.1 DESCRIPTION The oscillography module captures the waveform on the analog inputs when triggered by a selectable signal. Up to 4 different trigger signals can be selected, among every logical signal available (i.e: PFD fault signal, overcurrent trip, digital input, etc.). The trigger can be optionally inverted, in case the source signal is active low.

  • Page 48: Accessories And Related Equipment

    7 ACCESSORIES AND RELATED EQUIPMENT CAPACITIVE VOLTAGE METER HVR3A HVR3A is a voltage detector/meter which can be used with capacitive transducers as those usually found on switchgear bushings. The output can be feed to an SGC so it can meter power or use directional functions with no voltage transformer needed.

  • Page 49: Technical Characteristics

    8 TECHNICAL CHARACTERISTICS 8 TECHNICAL CHARACTERISTICS Power supply Auxiliary input voltage Option 12: 9,6 – 16 Option 24: 18 – 36Vdc Option 48/110+: 36 – 150 Vdc Option 220: 85 – 264 Vac Power rating <5 W Digital Inputs Detection level (Bipolar) Option 12: Low: 0 –...
  • Page 50 Voltage Nominal Voltage Option 12/220: 230 Vac Option 24/48/110: 120 / √3 Vac Option 110+ 120 / √3 Vac Max input voltage Option 12/220: 350 Vac Option 24/48/110: 150 Vac Option 110+ 275 Vac Accuracy AI model 0,8 Un<U< Un 0,2% Other Models 0,8 Un <U<1.2 Un Sampling / Analog Bandwidth...

  • Page 51: Versions

    9 VERSIONS VERSIONS Version Control functions 180A Control functions + oscillography + sag/swell protection Control functions + integrated RTU, small form factor SGC- Analog Power supply Mounting Communications Digital IO Options inputs 1A In = 1A 9 – 18 Vdc M Rear 1 8 DI + 4 DO Non UI...
  • Page 52 SGC180 SGC180A SGC195 Functions Fault pass detection    Voltage presence detection    Broken cable detection    Sectionaliser automatism   Circuit breaker failure    Circuit breaker supervisor Overcurrent protection Recloser Oscillography  Configurable inputs ...

  • Page 53: Schematics

    10 SCHEMATICS 10 SCHEMATICS 00110E4...
  • Page 54 00110E4...
  • Page 55 10 SCHEMATICS Illustration 13: Connection diagram 00110E4...

  • Page 56: Size

    Illustration 14: SGC195 Connection diagram 00110E4...
  • Page 57 11 SIZE Illustration 15: Connection example (1 Line Circuit Breaker + 2 Protection/Transformer Circuit Breakers) 00110E4...
  • Page 58 11 SIZE Drawing 1: Front and side views of SGC180 and SGC195 devices 00110E4...

  • Page 59: Testings

    11 SIZE Drawing 2: Top and bottom view of SGC180 device 00110E4...
  • Page 60 Drawing 3: Top and bottom view of SGC195 device 00110E4...
  • Page 61 12 TESTINGS 12 TESTINGS Dielectric strength: 2kV / 50Hz 1 min. according UNE EN 60255-5. ● Surge: 5kV 1,2/50us according UNE EN 60255-5. ● Electrical disturbance testing: 2.5kV longitudinal / 1kV cross, class III according UNE 21136-22-1. ● Fast transient: 2kV according UNE EN 61000-4-4 class III. ●...
  • Page 62 We also offer a wide range of protective products to use in medium and high voltage.  Capacitive and resistive isolators.  Overcurrent relays.  Overcurrent and undervoltage relays.  Frequency relays  Inverse Power relays  Synchronous checkers  Communication equipment ...

This manual is also suitable for:

Sgc180Sgc180aSgc195

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